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Description Self-Heating Function The intelligent self-heating function will start operating automatically once the batterys core temperature drops below 41F 5C effortlessly keeping your battery charged in cold environments. Plus this function is powered by the Charger/Controller’s current instead of the battery itself. Premium BMS Circuit Incredibly advanced BMS provides over 20 protections designed to allow a peak current of 150A to pass through deliver up to 1C charging and 1.3C discharging during an emergency. 50% more heat dissipation area will maximize the safety of your off-grid use. The Ultimate Quality The next-level pouch cells surpass severe high temperature and puncture tests to avoid fire or explosion. The battery cell not only passes the UL1642 but also offers over ten years of lifespan with more than 4000 cycles 80% DOD. Activation Switch With the activation switch cable now for the first time you can turn on or off multiple batteries in parallel to ensure the safety of installation and use. Auto-balancing Function Easily connect multiple batteries in parallelup to 8with the auto-balancing function improving the average charging efficiency for your batteries in the long term. Enhanced Ways to Monitor You can connect the battery monitor directly via CAT cable without purchasing an additional coulometer. You can also use the BT-2 Bluetooth DC HOME app to monitor multiple battery states in real-time.